body {
    /* c */
    color: #0f0;

    /* c#f */
    color: #ffffff;

    /* c#f0 */
    color: #f0f0f0;

    /* color:rgb */
    color:rgb(#ff0000, #00ff00, #0000ff);

    /* color:rgba */
    color:rgba(#ff0000, #00ff00, #0000ff, 0.5);
}